Permutation-lock.



G, ALBANESE. PERMUTATION LOCK. APPLICATION FILED JAN. 19. 1915.

Patented Oct. 26, 1915 2 SHEETS-SHEET 1.

0 G J .2. T :1 8 A CZ A w/r/vessm IIVI/EIVTOI? Gaefano Albanese ML u By ATTORNEYS coLuMnm PLANOGRAPH CO.,\VASHINGTON. D. c.

G. ALBANESE. PERMUTATION LOCK. APPLICATION FILED JAN. 19. 1915.

Patented Oct. 26, 1915. T a 2 SHEETS-SHEET 2.

lli/l/E/V TOR Gaefano Albane e A TTOR/VEVS UGLL'MBIA PLANDORAPH $0., WASHINGTON. u. c.

GAETANO ALBANESE, OF NEW YORK, N. Y.

PERMUTATION-LOCK.

Specification of Letters Patent.

Patented Oct. 26, 1915.

Application filed January 19, 1915. Serial No. 3,065.

To (I whom it may concern:

Be it known that I, GAnrANo AJJBANESE, a subject of the King of Italy, and a resident of the city of New York, borough of Man- 5 hattan, in the county and State of New York, have invented a new and Improved Permutation-Lock, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved permutationlock more especially designed for use on doors, tills and other devices, and arranged to hold the bolt normally in withdrawn position, say, during the day, and to allow of moving the bolt into shot-out or looking position during the night and to hold the bolt in this position without danger of an unauthorized person being enabled to retract the bolt.

In order to produce the desired result, use is made of a spindle provided at its outer end with a knob for turning the spindle, a cam arm fixed on the inner end of the spindle and provided at one end with a slot and at the other. end with a cam, a slidable bolt provided with a pin engaging the said slot, a series of tumblers provided at their peripheral faces with notches adapted to register with each other, and a sliding yoke having a cross bar extending across the peripheral faces of the said tumblers and adapted to drop into the said notches at the time the notches are in transverse alinement, the said bar being controlled by the said cam.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a rear face View of a permutation lock with the bolt in withdrawn position and the casing cover removed; Fig. 2 is like view of the same with the bolt shot out and with part of the cam arm broken out; Fig. 3 is a similar view of the same with the yoke in raised position; Fig. 4: is a rear face view of the bolt and yoke with the spindle and hubs of the tumblers shown in section; Fig. 5 is a cross section of the permutation lock on the line 55 of Fig. 1; Fig. 6 is a face View of the dials with the spindle shown is a face view of the same with the dials in set position; Fig. 8 is a face view of one of the dials; and Fig. 9 is a side View of the swing arm for resetting the tumblers to a different combination.

The casing A of the permutation lock is secured to the inner face of adoor B, and the said casing is provided with a removable cover A and with a bearing extending transversely through the door to the front face thereof, as plainly shown in Fig. 5. In the casing A is mounted to slide a bolt C provided with a transversely extending pin C projecting into a Z-shaped slot D formed in the lower end of a cam arm D secured on the inner end of a spindle E extending centrally through the hearing A and provided at its outer end with a knob E under the opposite direction then the bolt C is re tracted.

The upper end of the cam arm D is pro-- vided with a cam D adapted to engage the under side of a transverse bar F forming part of a yoke F mounted to slide up and down in the casing A. The bar F is pressed on by a spring. G held in the casing A and the bar F extends transversely across the peripheral faces of a series of tumblers H, H, H? and H each provided at its peripheral face with a notch H Normally the bar F rides on the peripheral faces of the tumblersH, H, H and H but the bar is adapted to drop into the notches H whenever thesame are in transverse alinement one with the other and in top position, as indicated in Figs. 1,2 and 5. The lower end of the yoke F is provided with a pin F adapted to engage either of the shoulders C or C formed on the lower end of the .bolt C, as hereinafter more fully described. The tumblers H, H, H and H are adapted to be turned individuallybydials I, I, I and If arranged one behind the other and centrally relative to the spindle E intermediate the knob Evand the front face of the bearing A.

On each of the tumblers H, H, H and H is pivoted a dog H (see Fig. 2) engaging one versely and having at their forward ends.

fixed thereto, the several dials I, I, I and I. As shown in Fig. 5, the, hub H? of the disk H for the first tumbler H is mounted loosely on the spindle E while the other hubsare mounted one within the other so that the tumblers H, H, H :H can be turned independently one relative to the other on turning the corresponding dial I, I, I or I Each of the dials I, I, I and I is provided'witha series of numerals, letters of the alphabet or other indicating characters I preferably consecutive numbers from 1 to 10 and spaced apart oneach dial with a groove I between adjacent characters so that the latter appear raised to enable .the user to readily grip any one of the dials with a view to turn the same until the indicating characters forming the combination at the time register with a mark J on the face of thedoorfas plainly indicated in Fig. 7. It is understood that when the dials are set to the combination the notches H*, of theseveral tumblers H, H, H and H are in transverse alinement one with the other and on top of the tumblers directly in register with the bar of the yoke F, so that the-lattercan engage the said registering notches. and thereby hold the tumblers against movementfor the time being.

The operation is as follows: WVhen the dials I, I, I and I have been set to the proper-combination then the yoke bar F .is moved into engagement with the registering notches H by the action of the spring G, and the pin F 2 on the'yoke F is below the shoulders C C so that the operator .on turning the kIlObwE can move the bolt G outward into locking position whenever it is desired to lock the door. It will be noticed that when the knob'E is turned in the direction of thearrow a the pin C is pushed forward by the wall at'the middle portion of the slot D and during this movement of thearm D the pin travels in the vertical portion of the slot '1) untilitfinally reaches the lower portion of the said slot (see Fig.2) at the time the bolt C has been comipletely shot out into engagement with the keeper, (not shown) on the door casing. At this time the cam D engages the bar F so 1 that on a further turning of the knob E in the direction .of the arrow a the bar F is raised against the tension of the-spring G and is thus moved out of engagement with the registering notches H Vhen the bar F and consequently the yoke F is raised the pin F 2 moves into engagement with the shoulder C (see Fig. 3), and at this time the operator turns one, two or all of the dials I, I, I and I to move the corresponding notches H out of register with the bar F, so that on releasing the knob E the bar F rests on the peripheral faces of the tumblers H, H, H and H. It will be noticed that the bolt G is now held against return movement by the pin F abutting against the shoulder C and the bar F is held against downward movement as it rests on the peripheral faces of the tumblers H, H, H and H When it is desired to retract the bolt- C it is first necessary for the operator to turn the dials I, I, I and I until the proper combination is in register with the mark J so that the bar F moves into engagement with the registering notches H by the action of the spring G. During this downward movement of the bar F and the yoke F the pin F 2 moves out of engage ment with the shoulder C so that the operator on turning the knob E can retract the bolt by the action of the arm D.

The tumblers H, H, H and H can be reset for any desired combination to suit the fancy'of the user and for this purpose the following arrangement is made: On the upper end of the arm D is formed a second cam D extending in an opposite direction to the cam D and adapted to engage and lift the bar F on turning the knob E in the inverse direction of the arrow a. When this takes place the pin F engages the shoulder C to hold the bolt C in retracted position during the resetting. operation. Each of the dogs H is pressed on by a spring H to hold the same in engagement with the corresponding notch H, as shown in Fig. 2, and the free end of the said dog H is adapted to be engaged by a swing arm K fulcrumed on the casing A and provided at its free end with a number of prongs K, each adapted to press on the free end of a corresponding dog H. The swing arm K is pivotally connected with a push button K extending through one side of the wall of the casing A, and the push button is pressed .on by a spring K to normally hold the push button K in outermost position and the swing arm K out of the path of the dogs H When it is desired to reset it is only necessary for the operator to press the-push button K inward so that the swing arm K imparts a simultaneous swinging movement to the several dogs H which now are all in alinement with each other owing one or all of the dials I, I, I and I to move any desired combination of characters into register with the mark J, and when this has been done the operator releases the push button K and consequently the dogs H to allow the latter to engage the corresponding notches H in the disks H After the resetting has been completed the knob E is released so that the several parts assume the position shown in Fig. 1. The bolts C can now be shot out whenever it is desired to do so, in the manner above described. The rear end of the bar F is adapted to engage a notch in the plate L attached to the casing A to give the desired support to the said bar F when in engagement with the notches H of the several tumblers.

Having thus described my invention, I claim as new and desire to secure byLetters Patent:

1.. A permutation lock, comprising a spindle provided at its outer end with a knob for turning the spindle, a cam arm fixed on the inner end of the spindle and provided at one end with a slot and at the other end with a cam, a slidable bolt provided with a pin engaging the said slot, a series of tumblers provided at their peripheral faces with notches adapted to register with each other, and a vertically movable sliding yoke having a cross bar extending across the peripheral faces of the said tumblers and adapted to drop into the said notches at the time the notches are in transverse alinement, the said bar being controlled by the said cam.

2. A permutation lock, comprising a spindle provided at its outer end with a knob for turning the spindle, a cam arm fixed on the inner end of the spindle and provided at one end with a slot and at the other end with a cam, a slidable bolt provided with a pin engaging the said slot, a series of tumblers provided at their peripheral faces with notches adapted to register with each other. a sliding yoke having a cross bar extending across the peripheral face of the said tumblers and adapted to drop into the said notches at the time the notches are in transverse alinement, the said bar being controlled by the said cam, a shoulder on the said bolt, and a pin on the said yoke adapted to engage the said shoulder on lifting the yoke at the time the bolt is shot out.

3. A permutation lock provided with tumbler disks each having a notch at the peripheral face, a resetting disk for each tumbler disk and provided with a hub on which the corresponding tumbler disk is mounted to turn loosely, each resetting disk having a plurality of notches on its peripheral face, a dog fulcrumed on each tumbler disk and engaging one of the notches on the resetting disk, springs for normally holding the dogs in engagement with the said notches, a swing arm provided at its free end with spaced prongs adapted to engage the free ends of said dogs, a push button pivotally connected with the swing arm for-imparting a swinging motion tothe said swing arm, and a spring pressing on the push button to normally hold the swing arm out of the path of the said dogs.

a. A permutation lock, comprising a spin dle having a knob at its outer end, a cam arm fixed on the inner end of the said spindle and provided at one end with a Z-shaped slot and at its other end with a cam, a slidable bolt having a pin projecting into the said slot, the bolt having a shoulder, a series of tumblers arranged centrally on the said spindle and each having a notch at its pe ripheral face, means for turning the said tumblers, and a yoke mounted to slide and having a bar extending transversely across the peripheral face of the said tumblers to engage the said notches when the latter are in alinement, the said bar being adapted to be engaged by the said cam, the said yoke having a pin adapted to engage the said bolt shoulder.

5. A permutation lock comprising a spindle provided at its outer end with a knob for turning the spindle, a cam arm fixed on the inner end of the spindle and provided at one end with a slot and at the other end with a cam, a slidable bolt having an elongated opening through which the spindle passes, the said bolt being provided with a pin engaging the said slot in the cam arm, a series of tumblers provided at their peripheral faces with notches adapted to register with each other, a sliding yoke having vertical guided movement in the casing, the said yoke having a transverse bar extending across the peripheral face of the tumblers, a spring pressing on said bar, the said bar being adapted to engage the said notches in the tumblers when the notches are in transverse alinement, a shoulder on the said bolt, a pin on the said yoke adapted to engage the said shoulder when the yoke is in raised position to hold the bolt in locked position, the cam on said cam arm engaging the said bar to lift the yoke against the tension of the said spring.

6. A permutation lock provided with a spindle, a cam arm fixed on the spindle and provided at one end with a slot, a slidable bolt provided with a pin engaging the said slot, the bolt being adapted to be actuated by the cam arm, a series of tumblers each provided with a notch in its peripheral face, a sliding yoke having a bar for engaging the said notches when the latter are in trans verse alin'elnen t, the said bolt being adapted to be retracted when the bar is in engagement with said notches, a cam on the said cam arm foi raising the said yoke and bar When the bolt is in retracted position, a shoiilder on the said bolt, a pin on the said yoke adapted to engage the said shoulder to hold the bolt in retracted position, resetting disks for the tumblers normally locked .0 thereto, and means for releasing the resetting disks to change the combination when the bolt is held in the retracted position.

In testimony whereof I have signed my name to this specification in the presence of 1 Copies of this patent may be obtained foffive cents each, by addressing the Commissioner of Patents,

1 Washington, D. C. 

